Narnavirus

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Amabiliviricetes
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Narnavirus
Narnaviruses have no
ribonucleoprotein complex
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Lenarviricota
Class: Amabiliviricetes
Order: Wolframvirales
Family: Narnaviridae
Genus: Narnavirus
Species

Narnavirus is a genus of positive-strand RNA viruses in the family Narnaviridae. Fungi serve as natural hosts. There are two species in this genus.[1][2] Member viruses have been shown to be required for sexual reproduction of Rhizopus microsporus.[3] Narnaviruses have a naked RNA genome without a virion and derive their name from this feature.[4]

Virology

Structure

Narnaviruses have no true virion. They do not have structural proteins or a capsid.[5]

Genome

Narnaviruses have nonsegmented, linear,

ribonucleoprotein complex.[2]

Replication cycle

Viral replication is cytoplasmic. Replication follows the positive-strand RNA virus replication model. Positive-strand RNA virus transcription is the method of transcription. The virus exits the host cell by cell-to-cell movement. Fungi serve as the natural host. Transmission routes are parental and sexual.[2]

Taxonomy

The genus has the following two species:[1]

References

  1. ^ a b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 16 May 2021.
  2. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  3. PMID 32269378
    .
  4. ^ "Narnaviridae - Positive Sense RNA Viruses - Positive Sense RNA Viruses (2011) - ICTV". talk.ictvonline.org. Retrieved 15 June 2021.[dead link]
  5. .

External links